Barry O'Neill

HoldMail

HoldMail is a fake SMTP server that doesn't deliver email! Instead, the messages are stored in a database, where they can be queried via a web application, or even better, a REST API - allowing for automated testing of email notifications. I created this application to solve a testing need for my team at work (Sparta Systems) and realised others could benefit from it!
[ GitHub ]

Hosted Graphite

The guys over at Hosted Graphite are running an increasingly popular service, providing Graphite (a popular metrics graphing tool) as a hosted service. In August, they asked me to develop an Android app to let customers monitor their configured graphs on the move. In September, we pushed the beta live!
[ Play Store | Hosted Graphite FAQ ]

WolframCA

WolframCA is an Android application to demonstrate 1-dimensional cellular automaton (CA). More information on CAs can be found on Wolfram Mathworld. The app allows selection of one of the 256 (rules 0-255) elementary cellular automata - as you scroll down the screen, it will generate the appropriate number of time steps to fill the available space. WolframCA makes use of the TiledBitmapView project (below).
[ Play Store | GitHub ]

TiledBitmapView

This Android library provides a scrollable SurfaceView implementation, in which the tiles that make up the surface are loaded on demand from a TileProvider as the user scrolls around. The library project also comes with a demo application. This demo's TileProvider simply generates a set of tiles which make up a tileable image (a pattern of stones).
[ Play Store (demo app) | GitHub ]

Pingly

Pingly was the first Android application that I wrote. It allows you to configure tests (called probes) to check whether a host or service is alive. These probes can be run manually, but also scheduled to run once in the future, or in a repeating manner, logging the outcomes.
[ Play Store | GitHub ]